<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Tank-oop</title>
  <style>
    body {
      margin: 0;
      background-color: rgb(15, 147, 255);
    }
    .main {
      width: 1500px;
      height: 800px;
      margin: 0 auto;
    }
  </style>
</head>
<body>
  <div class="main">
    <canvas id="cvs" width="1500" height="800"></canvas>
  </div>
</body>
<script src="./js/main.js" type="module"></script>
</html>